Not a clean label ingredient

Potassium Metabisulfite

Also known as: potassium pyrosulfite

Potassium metabisulfite is an unwholesome additive used in the preservation of food products. The chemical formula is K2S2O5. It is a white, odorless gas. It can be found as an antioxidant, preservative, and color enhancer in wine, dried fruits, and canned products.